<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>价格</title>
    <style>
        .box1{
            width: 160px;
            height: 24px;
            line-height: 24px;
            border: 1px solid #e1251b;
            margin: 0 auto;
        }
        .left{
            position: relative;
            float: left;
            width: 90px;
            height: 100%;
            text-align: center;
            font-weight: 700;
            background-color: #e1251b;
            margin-right: 8px;
            color: white;
        }
        .left i {
            position: absolute;
            right: 0;
            top: 0;
            width: 0;
            height: 0;
            border-color: transparent #fff transparent transparent;
            border-style: solid;
            border-width: 24px 8px 0 0 ;
        }
        .right{
            font-size: 12px;
            color: gray;
            text-decoration: line-through;
        }
    </style>
</head>
<body>
    <div class="box1">
        <span class="left">
            ￥1770
            <i></i>
        </span>
        <span class="right">
            ￥5880
        </span>
    </div>
</body>
</html>